Buster and Fifi Le Fume swap bodies when they both have a date with Babs and Hamton respectively
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(Buster in Fifi's body wakes up in Fifi's home)
Buster (thinking): Ugh, I gotta get ready for my date. Wait, this doesn't feel like my home.
(Buster walks up to a mirror and sees Fifi looking back at him)
Buster in Fifi's Body: Ack! I'm Fifi (covers his mouth because Fifi's voice is coming out instead of his) I even sound like her!